MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The critical heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document's intent to trick users into revealing sensitive recovery information. The presence of embedded JavaScript and numerous external URIs, including one pointing to a potential onion browser download, suggests a phishing or credential harvesting campaign. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://catamma.ru/uplcv?utm_term=onion+browser+download PDF link annotation
- http://www.ocnistudio.cz/ckfinder/userfiles/files/pedutevobonipuget.pdfIn PDF document text
- https://vishalahospitality.com/ckfinder/userfiles/files/22799120808.pdfIn PDF document text
- http://giftboxvietthuy.com/upload/ck/files/rilido.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/gozemivimuwokov.pdfIn PDF document text
- http://unseretochter.com/images/file/tatujixenimononeroki.pdfIn PDF document text
- https://brazilairporttransfers.com/ckfinder/userfiles/files/mesafefadizezaxevej.pdfIn PDF document text
- http://form4concrete.ru/pics/cont/file/37849544906.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/20520134893.pdfIn PDF document text
- http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/22621028964.pdfIn PDF document text
- https://hoatuoi360.vn/uploads/files/sokamitin.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/23520328313.pdfIn PDF document text
- http://alacarte-husum.de/userfiles/file/lajotugowalorinado.pdfIn PDF document text
- http://www.civilhospitalpalampur.in/img/uploads/files/tobizetukalidizipogim.pdfIn PDF document text
- http://gardenofsound.com/userfiles/files/dekutemubobapil.pdfIn PDF document text
- http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/zuwonisubosuke.pdfIn PDF document text
- http://rabotatver.ru/userfiles/admin/kukap.pdfIn PDF document text
- https://armour-technoz-ca.otzol.net/ckfinder/userfiles/files/33366570132.pdfIn PDF document text
- http://budka39.ru/files/21907668872.pdfIn PDF document text
- http://lexxyin.net/files/fckeditor/file/tujuragijevizix.pdfIn PDF document text
- http://hide-bo.com/img/tmp/file/55525327285.pdfIn PDF document text
- https://kingdom.vn/userfiles/file/sulibexekopumokalida.pdfIn PDF document text
- http://adriennemason.com/assets/files/1206741393.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/roduvifa.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360ed91a9ce---65922848711.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e816.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE816 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001002d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1002D | 10396 bytes |
SHA-256: 43d08a93b592074fb2471684b900c0d3bbbf616219178ec4f21dc3937412b3d7 |
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font_02_sfnt_off000117d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D5 | 18672 bytes |
SHA-256: 3a5d087159df9dbcbbf347f0618d573b880c56d70cda628cfdacc31019aae948 |
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